Chem. Commun.

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1,2,3-Triazoles from carbonyl azides and alkynes: filling the gap

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8978-8981
DOI: 10.1039/C4CC03614J, CommunicationEstela Haldon, Eleuterio Alvarez, M. Carmen Nicasio, Pedro J. Perez
The first example of the synthesis of 1,2,3-triazoles bearing a carbonyl-group at the N1 from a copper-catalyzed alkyne-azide [3+2] cycloaddition (CuAAC) is described.
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Total synthesis of the cyanobacterial metabolite nostodione A: discovery of its antiparasitic activity against Toxoplasma gondii

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8904-8907
DOI: 10.1039/C4CC03904A, CommunicationJ. McNulty, K. Keskar, C. Bordon, R. Yolken, L. Jones-Brando
A diversity-oriented total synthesis of nostodione-A and analogues and their antiparasitic activity against Toxoplasma gondii is reported.
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Regioselective hydrations of 1-aryl-3-en-1-ynes using gold and platinum catalysts: selective production of 2-en-1-ones and 3-en-1-ones

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8966-8969
DOI: 10.1039/C4CC02786H, CommunicationBhanudas Dattatray Mokar, Rai-Shung Liu
Regiocontrolled hydrations of 1-aryl-3-en-1-ynes have been accomplished with IPrAuOTf and PtCl2/CO to yield 3-en-1-ones and 2-en-1-ones efficiently; our experimental data indicates that the sizes of catalysts play an important role.
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A CO2- and temperature-switchable "schizophrenic" block copolymer: from vesicles to micelles

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8958-8961
DOI: 10.1039/C4CC03156C, CommunicationAnchao Feng, Chengbo Zhan, Qiang Yan, Bowen Liu, Jinying Yuan
The block copolymers self-assemble in aqueous solution and the polymer assemblies undergo "schizophrenic" micelle to vesicle morphological transition under CO2 and temperature as triggers.
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Enantioselective hydrogenation of [small alpha],[small beta]-disubstituted nitroalkenes

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8878-8881
DOI: 10.1039/C4CC03942D, CommunicationShengkun Li, Kexuan Huang, Xumu Zhang
The first highly enantioselective hydrogenation of [small alpha],[small beta]-disubstituted nitroalkenes was accomplished, which will provide an entry to valuable chiral amphetamines.
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Iron or boron-catalyzed C-H arylthiation of substituted phenols at room temperature

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8875-8877
DOI: 10.1039/C4CC03600J, CommunicationHua Tian, Changjin Zhu, Haijun Yang, Hua Fu
A simple, efficient and environmentally friendly method for iron or boron-catalyzed C-H arylthiation of substituted phenols at room temperature has been developed, and the corresponding diaryl sulfides were prepared in good to excellent yields.
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Synthesis of 3,3-disubstituted indoline-2-thiones catalysed by an N-heterocyclic carbene

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8871-8874
DOI: 10.1039/C4CC04047C, CommunicationHideo Ikota, Takayuki Ishida, Chihiro Tsukano, Yoshiji Takemoto
A catalytic method has been developed for construction of indoline-2-thiones containing an all-carbon quaternary centre at the C-3 position.
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Synthesis of nitrogen heterocycles via [small alpha]-aminoalkyl radicals generated from [small alpha]-silyl secondary amines under visible light irradiation

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8900-8903
DOI: 10.1039/C4CC03000A, CommunicationKazunari Nakajima, Mai Kitagawa, Yuya Ashida, Yoshihiro Miyake, Yoshiaki Nishibayashi
We have succeeded in the visible light-mediated synthetic use of [small alpha]-aminoalkyl radicals derived from [small alpha]-silyl secondary amines toward addition to [small alpha],[small beta]-unsaturated carbonyl compounds. The resulting [gamma]-aminocarbonyl compounds are converted into [gamma]-lactams and pyrroles in a one-pot process.
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Entrapment of alkaloids within silver: from enantioselective hydrogenation to chiral recognition

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8868-8870
DOI: 10.1039/C4CC02823F, CommunicationHengpan Yang, Dinghui Chi, Qilong Sun, Wenwen Sun, Huan Wang, Jiaxing Lu
An organically doped silver catalyst was synthesized for enantioselective electrohydrogenation and chiral recognition with high efficiency and remarkable recycle times.
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Facile electrosynthesis of [small pi]-extended porphyrins

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8864-8867
DOI: 10.1039/C4CC02759K, CommunicationYuanyuan Fang, Dominik Koszelewski, Karl M. Kadish, Daniel T. Gryko
Free-base porphyrins as well as their iridium and indium complexes have been electrochemically coupled, leading to [small pi]-extended macrocycles.
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Near IR excitation of heavy atom free Bodipy photosensitizers through the intermediacy of upconverting nanoparticles

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8896-8899
DOI: 10.1039/C4CC03387F, CommunicationSeda Demirel Topel, Gunseli Turgut Cin, Engin U. Akkaya
Orthogonal dimers of Bodipy can be effectively excited to generate singlet oxygen at 980 nm.
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A sensitivity tuneable tetraphenylethene-based fluorescent probe for directly indicating the concentration of hydrogen sulfide

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8892-8895
DOI: 10.1039/C4CC02844A, CommunicationYunbo Cai, Lingzhi Li, Zongtan Wang, Jing Zhi Sun, Anjun Qin, Ben Zhong Tang
A selective tetraphenylethene-based fluorescent H2S probe was designed and synthesized, which exhibits tuneable sensitivity and could directly indicate the concentration of H2S.
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Mesoporous single crystals Li4Ti5O12 grown on rGO as high-rate anode materials for lithium-ion batteries

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8856-8859
DOI: 10.1039/C4CC02886D, CommunicationWeina Chen, Hao Jiang, Yanjie Hu, Yihui Dai, Chunzhong Li
Mesoporous single crystals Li4Ti5O12 grown on reduced graphene oxide (MSCs-LTO-rGO) nanohybrids have been synthesized by a simple hydrothermal reaction of TiO2/rGO and LiOH with subsequent annealing in Ar at 600 [degree]C, which exhibited excellent electrochemical performances.
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Alkali metal oxides trapped by diethylzinc

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8937-8940
DOI: 10.1039/C4CC02929A, CommunicationL. Zane Miller, Michael Shatruk, D. Tyler McQuade
Diethylzinc has yielded interesting and often puzzling reactivity for over 165 years. Herein, we demonstrate the preparation of well-defined structures composed of alkali metal oxides surrounded by diethylzincs.
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Self-assembled organic monolayers on epitaxial graphene with enhanced structural and thermal stability

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8852-8855
DOI: 10.1039/C4CC02761B, CommunicationHunter J. Karmel, John J. Garramone, Jonathan D. Emery, Sumit Kewalramani, Michael J. Bedzyk, Mark C. Hersam
Perylenetetracarboxylic diimide forms well-ordered self-assembled monolayers on epitaxial graphene with enhanced structural and thermal stability compared to previous perylene-based compounds.
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C5-Amino acid functionalized LNA: positively poised for antisense applications

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,9007-9009
DOI: 10.1039/C4CC03623A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Dale C. Guenther, Pawan Kumar, Brooke A. Anderson, Patrick J. Hrdlicka
Oligonucleotides modified with C5-amino acid LNA uridine result in highly thermostable duplexes, with excellent discrimination of single nucleotide mismatches. Additionally, these ONs are inert toward 3[prime or minute]-exonuclease degradation.
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Tuning the electronic effects of aromatic phosphorus heterocycles: an unprecedented phosphinine with significant P([small pi])-donor properties

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8842-8844
DOI: 10.1039/C4CC03469D, CommunicationAntonia Loibl, Iris de Krom, Evgeny A. Pidko, Manuela Weber, Jelena Wiecko, Christian Muller
Substituent effects in phosphinine chemistry have been studied systematically and for the first time considerable [small pi]-donor properties of the aromatic phosphorus heterocycles have been revealed.
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Negatively-charged helices in the gas phase

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8849-8851
DOI: 10.1039/C4CC03257H, CommunicationAndrew R. Johnson, Jonathan M. Dilger, Matthew S. Glover, David E. Clemmer, Erin E. Carlson
A polyalanine-based peptide which forms a stable, negatively-charged [small alpha]-helix in the gas phase is reported.
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Design, synthesis and biological evaluation of mitochondria targeting theranostic agents

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8919-8922
DOI: 10.1039/C4CC03296A, CommunicationSong Wu, Qizhen Cao, Xiaolin Wang, Kai Cheng, Zhen Cheng
Dual mitochondria targeting fluorescent F16-TPP analogues were designed and synthesized.
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A novel high efficiency composite catalyst: single crystal triangular Au nanoplates supported by functional reduced graphene oxide

16 July, 2014 - 13:54

Chem. Commun., 2014, 50,8889-8891
DOI: 10.1039/C4CC03306J, CommunicationWeina Wang, Jiangjiang Gu, Wenwen Hua, Xudong Jia, Kai Xi
To improve the utilization efficiency of Au catalyst, triangular Au nanoplates on functional reduced graphene oxide were prepared by a facile method.
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